Background and Objective: the gap junction plays an important role in the exchange of nutrients, ions, and regulatory molecules between cells.
背景与目的：间隙连接在细胞间的营养物质、离子和细胞调节因子的交换中起重要作用。
With 60 junction lines, the telephone communication system will operate by virtual exchange. The Exhibition Hall is equipped with IC telephones.
电话通讯系统采用虚拟交换局方式，中继线60条，展馆内外采用ic卡。
With 60 junction lines, the telephone communication system will operate by virtual exchange. The Exhibition Hall is equipped with IC telephones.
电话通讯系统采用虚拟交换局方式，中继线60条，展馆内外采用ic卡。
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